Speed up I/O when using cached simulations
ok, although this is not an answer to your question, but i think it is important that you understand what is going on in fluid/smoke simulations.
First there is the domain, in which the whole simulation is going on. So every piece of smoke of fluid must be inside of this.
It &quot;normally&quot; makes no sense to move or animate the domain at all (from my point of view). So why are you animating the domain?
Inside the domain you can use inflows or geometry, which is the &quot;real&quot; smoke or fluid which then will be animated inside the domain.
You can imagine the domain as something, which is the world of fluids and all fluids can only live inside of that.
So my first advice: do not animate or move the domain at all. I never made it and maybe i am wrong - but i don't think it is a good idea to move it at all.
Move the inflows or your fluid inside the domain.
Maybe just changing this will solve your lagging problems. If not, just update your .blend file without moving the domain or explain me, what do you want to achieve by moving the domain?